Ray Sharkey
The character of Smitty is particularly interesting in light of Ray Sharkey's struggles with heroin and cocaine. I have to say I suspect he was on something when he made this, or may he was just that convincing.
Regardless, he was a superb actor whose vices got the best of him, and he left us too soon. This film and "The Idolmaker" are proof of the talent he had – and what more he could have done had he lived longer.